| Primary Identifier | MGI:3640336 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Usf1 |
| Transmission | Germline | Strain of Origin | 129S2/SvPas |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A targeting vector was designed to insert an IRES-Betageo into exon 4, replacing exons 5 through 9. Western blot failed to detect protein in mutants. |